OpenHarness before commit bd4df81 contains a server-side request forgery (SSRF) vulnerability in the web_fetch and web_search tools. Attackers can manipulate tool parameters without proper validation to access private and localhost HTTP services. The vulnerability allows attackers to influence agent sessions to invoke tools against loopback, RFC1918, link-local, or other non-public addresses. This enables reading response bodies from local development services, cloud metadata endpoints, admin panels, and other private HTTP services reachable from the victim host.